commit this awful crime? >> i have not heard anything this morning that would explain what transpired on friday morning. the investigation continues, as it will until we, you know, turn over every page and every piece of evidence to understand what possibly might have motivated this, but this is mental illness. this is, you know, dressed in evil, i suppose. and it just-- you know, it just humans a community, humans a state, and, obviously, as we sit here sunday morning, it overwhelms will the nation. >> schieffer: we understand that these guns that he took to the school were actually his mother's guns. do we know any more about her? i mean, why would she have a collection of guns? what was that about? >> well, apparently, she collected guns. there have been stories of her friends in the gun collecting arena. we have the permits.